I would say depends @whirlibird, I honestly think if we are to reach sustainable environment we have too many away from food production and into other fields. I believe ratio is 1% pop support everyone else in food.
To get away from factory machine farms, more people will be required to pick and manually do the work on a permanent culture smaller plot farm. Would have to go to atleast 5 percent workers in a farm setting. There would be some support structures changed but if we don’t a collapse of food supply is a matter of when not if.
Green roof tops in city should be atleast some food production ie berry bushes, some vegitables. More fuel is used transporting goods to city from other countries than is used in production.
Also area development should be confined by these things. Available water, sewage management, food supply, buiness needs, land type. The codex alamentarius is about mass consentration of people and rest of land for farming or other use….. not a good idea having dense housing in areas where not enough water or built in hurricane/flood/tornado areas without pre planing and accounting for these elements.
Keep the rural already agricultural land reserve. Keep the fame under 1 section ranches no more than 3. It makes it manageable by humans not using mechanicanicle means all the time. If the land has to be used for farming it limits price.
Make kids/adults go to farming operations either in the city or out so not clueless about food.